SUSE-SU-2026:0151-1

Vulnerability from csaf_suse - Published: 2026-01-19 09:56 - Updated: 2026-01-19 09:56
Summary
Security update for libsoup

Notes

Title of the patch
Security update for libsoup
Description of the patch
This update for libsoup fixes the following issues: - CVE-2025-14523: Reject duplicated Host in headers and followed upsteram update (bsc#1254876). - CVE-2026-0719: Fixed overflow for password md4sum (bsc#1256399)
Patchnames
SUSE-2026-151,SUSE-SUSE-MicroOS-5.2-2026-151
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).

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          "text": "A flaw in libsoup\u0027s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers.",
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          "text": "A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk.",
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      "title": "CVE-2026-0719"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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